macOS Monterey v12 is now available for general Mac users

Dear Mac users,

Computing has released macOS Monterey v12 for general Mac users.

macOS Monterey v12 is now available.

• The upgrade to macOS Monterey v12 is not mandatory.
• The upgrade process can take 1 to 2 hours depending on hardware and network conditions.
• Your machine will need to reboot as part of the upgrade process.

If you wish to upgrade to macOS Monterey v12, please do either of the following:
• Submit a Service Desk request at and include your computer’s property tag number in the request. Support staff will evaluate your computer to determine whether the hardware will support the upgrade and, if so, perform the upgrade.
• Perform the upgrade yourself by opening the Self Service App and going to the macOS Upgrades category. Under the “Upgrade to macOS Monterey 12” heading, select “Upgrade Now.” This process will go through a series of checks to determine if your hardware will support the upgrade. The upgrade process can take 1 to 2 hours depending on hardware and network conditions. Please note that due to Fermilab’s winter break, there will be limited support from Dec. 24, 2021, through January 3, 2022 if you choose to upgrade during the winter break.

If you have customized the configuration of your Mac to allow incoming SSH:
• Some updates from Apple may overwrite existing macOS system configuration files. This may cause a Mac with certain custom configurations to violate OS Baseline and be blocked from the network. Updates initiated through Jamf Self-Service will back up the existing SSHD configuration file and turn off remote login (inbound ssh). You will need to review the SSHD configuration file to ensure compliance before turning on remote login (inbound ssh).

If you use Apple’s built-in macOS software update to install Apple updates and have configured your Mac to allow incoming SSH:
• It is recommended that you back up your SSHD configuration file and disable incoming SSH before installing the update.

NOTE: If you choose to use the built-in iCloud services, such as iCloud Keychain, within macOS Monterey v12, be sure to follow proper security practices on both your work-related and personal devices. It is important that you use passcodes on all your iOS devices, including iPhones and iPads. If you opt to use the iCloud Keychain service, it will sync the passwords (including Fermilab credentials) between all the devices using your iCloud account. See this Apple support article for more information: